Was Nintendo Company hit by ransomware?

Nintendo Company was listed by the ShadowByt3$ ransomware operation (Japan), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the ShadowByt3$ ransomware group?

ShadowByt3$ is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Nintendo Company breach?

ShadowByt3$ published data attributed to Nintendo Company. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Nintendo Company

Claimed by ShadowByt3$ · listed 2 months ago

Age

since listed · data leaked

Status timeline

ListedJun 12, 2026
Data leakeddate unknown

At a glance

Group: ShadowByt3$
Status: Data leaked
Country: Japan
Sector: Technology
Listed on leak site: Jun 12, 2026

What the group claims

proof: https://mega.nz/folder/3kBzQKgR#rIhDePsPMeFpfEGTPopDVQ We are ShadowByt3$ a extortion as a service group. We stole close enough to 1gb. You have 48 hours to contact us nintendo or all data gets leaked. If you contact us we give you an extra day to think this through. We are demanding a ransom payment of 2 million dollars. Check your inbox if you work for nintendo and use TINYpulse or go login to tinypulse if the url in the leak looks familiar. You have 48 hours from this announcement then it gets leaked. You have till June 15 2026. size: 859.0MB Close enough to 1GB it contains the following: -full name first name, last name, email of employees -analytics - surveys - all reports exported - all bank statements of payment pdf and w9 forms with employee ids - all cheers exported - all wins dashboard and wall of wins exported - all progress plans exported - Reports from 2016 to up to date 2026 - Analytics of Employees contain conversations and personal feelings about work and more - Content library of personal questions and engagement analytics - TINYpulse and Nintendo top employees of Nintendo based on engagement

Sources

Victim siteNintendo.com

Source

Indexed 2 months ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About ShadowByt3$

ShadowByt3$ is an emerging ransomware group that was first observed in February 2026, appearing to be financially motivated based on its ransomware operations. The group's country of origin and any potential affiliations with other cybercriminal organizations remain unknown due to limited intelligence available on this newly identified threat actor. Given the minimal public documentation available, the group's attack methodology, tools, and operational tactics have not been sufficiently analyzed or reported by major cybersecurity firms or government agencies. No notable campaigns, high-profile victims, or significant ransoms have been publicly documented by CISA, FBI, Mandiant, or other reputable security researchers, with only one known victim reported to date and no specific sector targeting patterns identified. The current operational status of ShadowByt3$ remains unclear due to the limited intelligence available on this recently emerged and relatively unknown ransomware operation. The group has been linked to 21 public disclosures across our corpus. First observed on a leak site on February 25, 2026; most recent post August 25, 2026. The operation is currently active.

Timeline of this disclosure

June 12, 2026Nintendo Company listed by ShadowByt3$on the group's public leak site

Other recent disclosures by ShadowByt3$

ShadowByt3$ has been linked to 21 public victims on Darkfield. A sample of the most recent:

See the full ShadowByt3$ dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,573 disclosures indexed across all operators we track. Geographically, Nintendo Company is reported in Japan, a country with 89 ransomware disclosures in our corpus.

If your organisation is affected

A listing by ShadowByt3$ means Nintendo Company appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, JPCERT/CC (Japan), as required for your jurisdiction.
Monitor for the data appearing on ShadowByt3$'s leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.